public void Car_Delete(FactoryArgs args, t_BigID CarID) { DBHelper.ExecInTransDelegate exec = delegate(FactoryArgs argsInTrans) { _DALDbCar.DeleteCustomerCarByCarID(argsInTrans, CarID); _DALDbCar.Customer_Delete(argsInTrans, CarID); }; DBHelper.ExecInTrans(args, exec); }